I had and liked a pair of 901's from 1972 til 199?..when the 500W Bose amp shorted for a second time, taking out one of it's channels and frying all the drivers on that side. Replaced with Vandersteen 2ci's.
I use the remaining speaker for my back surround in normal v to the wall, to spread the sound as intended...use the HT AV amp room correction to replace the equalizer. Works great but of course there's only occasional sounds coming from the back channel. (surround music CD's/DVDs are fun).